Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
HG

Heinz Erwin Grellmann

Xerox: 5 patents #2,266 of 8,622Top 30%
Tektronix: 2 patents #537 of 1,698Top 35%
Beaverton, OR: #774 of 3,140 inventorsTop 25%
Oregon: #5,706 of 28,073 inventorsTop 25%
Overall (All Time): #746,609 of 4,157,543Top 20%
7 Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
8224214 Collapsible packaging system Michele Kayla Mae Durham, Robert C. Tidrick 2012-07-17
7959270 Collapsible packaging system Michele Kayla Mae Durham, Robert C. Tidrick 2011-06-14
7758173 Collapsible packaging system Michele Kayla Mae Durham, Robert C. Tidrick 2010-07-20
7682010 Solid ink stick with coating Paul C. Lucas, Brent R. Jones 2010-03-23
7577384 Collapsible packaging system Michele Kayla Mae Durham, Robert C. Tidrick 2009-08-18
4831222 Integrated pad switch Leonard A. Roland 1989-05-16
4695811 High frequency coaxial switch Leonard A. Roland 1987-09-22